Excavator linear movement control device and excavator linear movement control method

Abstract

The invention discloses an excavator linear movement linear movement control device. The excavator linear movement control device comprises a moving arm lifting convergence electromagnetic valve and a control device, wherein the moving arm lifting convergence electromagnetic valve is connected between a pilot pump and a valve plug of a moving arm lifting convergence valve, the control device is connected with a linear movement electromagnetic valve and a control end of the moving arm lifting convergence electromagnetic valve respectively, controls the linear movement electromagnetic valve to push the valve plug of the linear movement valve to perform transposition through control signals, and controls the moving arm lifting convergence electromagnetic valve to cut off a pilot pipeline between the valve plug of the moving arm lifting convergence valve and the pilot pump. The excavator linear movement control device has the beneficial effects that the parallel-connection oil pipeline of a right walker and the moving arm lifting convergence valve is eliminated, and the problem that the single-side movement of the excavator cannot be performed when the excavator makes a combined action of moving on the right side and lifting the moving arm can be solved.

Description

technical field [0001] The invention relates to an excavator control device, in particular to an excavator linear travel control device and a control method thereof. Background technique [0002] With the development of society and the needs of national construction, the scope of use of excavators is becoming wider and wider. Excavators play a pivotal role in mineral development, water conservancy construction and road construction. While paying attention to product performance and operating efficiency, the operation safety of excavators has also attracted extensive attention, especially when excavators are stuck in mud or climbing slopes with large angles, safety has become the most important issue. The main valve used by some excavators, in order to meet the needs of the normal operation of the excavator as much as possible, such safety issues are not considered too much in the design of the main valve oil circuit. When the excavator is doing unilateral walking and some c...

AI Technical Summary

Problems solved by technology

And because the working pressure of the travel motor is higher than the pressure of the boarding vehicle at this time, the flow that the travel motor can distribute is little or no flow, and the phenomenon of unilateral walking and no movement occurs.

However, under the extreme conditions of getting stuck in mud or climbing a slope with a large angle, unilateral walking without movement is undoubtedly a great threat to safety.

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